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Specific features of dielectric anomalies in Pb1 − x Ge x Te(Ga) near a ferroelectric phase transition

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Abstract

The dielectric properties of Pb1 − x Ge x Te(Ga) (x = 0.02, 0.03, 0.05) were studied in the temperature range 77–150 K at frequencies of 104–106 Hz. It is revealed that the ferroelectric phase transition temperature T c and the permittivity ɛ of Pb1 − x Ge x Te(Ga) increase substantially with the Ge content. The temperature dependence of the permittivity of Pb1 − x Ge x Te shows two peaks; the main peak is at the ferroelectric phase transition temperature T c , and an additional peak is at T 1 > T c .

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Correspondence to S. V. Baryshnikov.

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Original Russian Text © S.V. Baryshnikov, A.S. Baryshnikov, A.F. Baranov, V.V. Maslov, 2008, published in Fizika Tverdogo Tela, 2008, Vol. 50, No. 7, pp. 1270–1273.

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Baryshnikov, S.V., Baryshnikov, A.S., Baranov, A.F. et al. Specific features of dielectric anomalies in Pb1 − x Ge x Te(Ga) near a ferroelectric phase transition. Phys. Solid State 50, 1322–1325 (2008). https://doi.org/10.1134/S1063783408070202

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  • DOI: https://doi.org/10.1134/S1063783408070202

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